Sorry, I couldn't find that game. But I would like to share what I have found:
Only two tournaments in which Reinderman participated in 2021:
-- Dutch League 2021-22 (Netherlands NED, 2021.09.16 - 2022.05.21) and
-- NED Ch KO 2021 (Hoogeveen NED, 2021.10.15 - 2021.10.23), just two games
As for Elgersma:
-- Titled Tuesdays (
chess.com)
-- NED Ch Jeugd A 2021 (Almelo NED, 2021.08.01 - 2021.08.07)
-- 36th Geraardsbergen Open (Geraardsbergen BEL, 2021.08.08 - 2021.08.12)
-- EY U18 2021 (Tornelo INT, 2021.10.15 - 2021.10.21)
-- Dutch League 2021-22 (Netherlands NED, 2021.09.16 - 2022.05.21)
Maybe looking for specific PGNs for those tournaments on the internet?